baber/WOPTO huggingface dataset:
Patent GB-921562-A (GB)
Title: Directional gyroscopes
IPC: G01C19/34
Filed: 1961-05-01
Abstract: 921,562. Gravity switches. RIO TINTO MANAGEMENT SERVICES SOUTH AFRICA (PROPRIETARY) Ltd. May 1, 1961 [May 3, 1960], No. 15732/61. Class (5)38. [Also in Groups XX and XXXVI] A directional gyroscope in a borehole surveying instrument has its rotor axis 132 maintained horizontal by means of a torque motor 211 controlled by a gravity switch in the form of a wire bail 30 suspended from loops 51 and co-operating with contacts 31, 32, the members 30, 31, 32, 51 being made of, or coated with, gold, silver or other good contact material.
Patent GB-1045515-A (GB)
Title: Electrolyte and diffusion process
IPC: C30B31/02
Filed: 1965-04-12
Abstract: A phosphorus-containing oxide film is grown on the surface of a semi-conductor wafer by anodization in the presence of an electrolyte comprising pyrophosphoric acid.  The preferred electrolyte is a solution of pyrophosphoric acid (2 to 25 volume per cent, preferably between 12 and 18 volume per cent) in tetrahydrofurfuryl alcohol with an applied voltage of up to about 150 volts. The geometry of the oxide film produced is controlled by illumination during the anodizing operation, which is preceded by an etch in a mixture of nine parts nitric acid and one part hydrofluoric acid.  Blue light is preferred for front surface illumination and white or other light for back surface illumination, in which case the semi-conductor material may be webbed dendritic silicon prepared as described in Specification 938,915.  One electrode may be of platinum and the other of a low work-function metal such as aluminium or zinc, and the tank and the support for the semi-conductor wafer may be of glass, plastic, ceramic, or other electrically non-conducting material.
Patent GB-630458-A (GB)
Title: Shale distillation process
IPC: C10G1/02
Filed: 1947-06-12
Abstract: <PICT:0630458/III/1> Coarsely-ground shale is fed into a dense, fluidized bed of hot, finely-divided, spent shale; the temperature of the hot spent shale and the relative amounts of the raw and spent shale being adjusted so that volatile hydrocarbons are evolved from, with simultaneous disintegration of, the raw shale.  When the temperature drops below an effective distillation temperature, the addition of raw shale is discontinued, and an oxidizing gas is passed through the fluidized bed until the temperature is raised sufficiently, by the burning of carbonaceous material on the spent shale, to allow the addition of raw shale to be recommenced.  The operations are preferably carried out using two vessels-raw shale being distilled in one, while combustion of spent shale is taking place in the other.  Ground shale having an average size of 1/4 inch diam. is discharged through line 3 from hopper 1 into vessel 5 which contains spent shale at a temperature of about 1000 DEG  F., maintained in a dense, fluidized condition by a gas, such as steam, introduced into the bottom of the vessel through lines 10, 11, 14. Spent shale is simultaneously withdrawn, in amounts corresponding to the rate of addition of raw shale, through dip-pipe 40 and, if necessary, through draw-off 32. Volatile hydrocarbons, together with the fluidizing gas, are withdrawn through line 45 and cyclone 50, and are passed to fractionating equipment (not shown).  When the temperature of the bed drops, the valve in line 3 and valve 42 in line 40 are closed and, a minute or so later, air is admitted into vessel 5 from line 60 by opening valve 23.  Shortly afterwards the admission of steam to vessel 5 is discontinued by closing valve 27. The combustion products leave vessel 5 through line 45.  A portion of the combustion products is passed through line 92 into the bottom of hopper 1 where it preheats the raw shale therein to about 400-500 DEG F., and then leaves through line 91.  The portion of the combustion products not used for preheating is discharged through line 82, cyclone 83, and waste-heat boiler 90.  During the combustion of carbonaceous material on the spent shale in vessel 5, raw shale is discharged through line 4 from hopper 1 into vessel 51 where distillation is carried out in the same manner as in vessel 5.  If more heat is required for the process than is obtainable by burning off the carbonaceous material on the spent shale, a liquid hydrocarbon oil may be injected into the spent shale prior to or during the combustion, or a portion of the volatile products of distillation may be burned to supplement the heat of combustion.
Patent GB-600402-A (GB)
Title: Improvements in or relating to flow-meters
IPC: G01F1/22
Filed: 1944-08-14
Abstract: 600,402. Vertical. tube flow meters. FISCHER & PORTER CO. Aug. 14, 1944, No. 15502. Convention date, Aug. 13, 1943. [Class 69 (i)] [Also in Group XXVI] A flowmeter comprises a float within a vertical metering tube or a number of such tubes, separate fittings at the ends of each tube, each fitting having a horizontal opening for connection to a pipe-line, a fluid-tight seal between each fitting and said tube, an outer casing or frame removably positioned about said tube, and means connecting each fitting whereby it may be rotated in a horizontal plane. In the form shown, a tapered glass tube 10, Figs. 1 and 2, between fittings 11 and 12 contains a float 13 sliding on a guide-rod 14. The cylindrical float 13, with disc-like head 19 has a specific gravity somewhat greater than the fluid, and with upward flow rises proportionally to the rate of flow. The pipe-line is connected by openings 24 and 25, which may be exchanged for the closure plugs 36 and 37. In Fig. 2, the plugs are received in the apertured adapters 28 and 29 fixed in the openings 26 and 27. Within the necks 20 and 21 are stuffing boxes 22 and 23, on which necks are annular grooves 44 and 45 which receive half-rings 40a, 41a and corresponding half-rings in casing sections 38 and 39, connected with the flanges of the stuffing glands 46, 47 and drawbars 56, 57 by bolts 60 and 61, the heads of which pass through notches in collars 69 and 70 fitted over the sections 38 and 39, said collars being screwed to the sections 38, 39 at 71 and 72. One section, e.g. 38, may have front and back windows 67, received into section 39. From the inside of the casing a scale may be supported or the glass may be etched. The sections 38, 39 may be replaced by elements 79 having side columns 80, the gradations being on the glass, Figs. 6 and 7. To mount two or more tubes an additional central section is employed having half-rings and drawbars at the top and at the bottom, bolted together and matching with the corresponding rings on the sections 38, 39. There are two windows on one side which fit into notches on the section 39, and on the other side notches to receive two windows from the section 38, suitable collars being fitted over. Two or more tubes can also be mounted by using a central section having a flat column between the split-rings, or by employing end spacer elements having half-rings, which may have front and back threaded openings for bolting to the collars.
Patent GB-581607-A (GB)
Title: Materials for radiography
IPC: G03C1/36
Filed: 1944-08-15
Abstract: 581,607. Sensitive materials for radiography. CHILTON, L. V., and ROBINSON, R. R. Aug. 15, 1944, Nos. 15512 and 15513. [Classes 98 (i) and 98 (ii)] Radiographic sensitive material for recording X-rays or gamma rays is provided on both sides with a protective colloid layer containing substances which absorb the radiation other than X-rays or gamma rays to which the material is sensitive, the layers being permeable to but not spontaneously removable by alkaline photographic developing solutions, but removable by other means at a later stage in the processing. The processing can consequently be carried out other than in a dark room. The photographic emulsion is carried on a support of glass, paper or film, the protective colloid being one of the polymeric nitrogenous substances containing amino groups described'in Specifications 514,427 and 537,232, e.g. deacetylated chiten or piperidyl methyl zein which are removed in an acid bath, e.g. the fixing bath. Metal alginates soluble in ammonia are also suitable as are interpolymers of maleic anhydride with methyl methacrylate or styrene soluble in acetone, methylene chloride or aqueous or alcoholic ammonia. A liquid composition comprising gum and either skimmed milk or gelatin or both may be applied to yield a colloid layer which is resistant to alkaline baths, but may be removed after treatment in the developing solution by gentle rubbing. Unhardened gelatin may also be used, being removed by treatment with warm water. Alternatively, a layer permeable to alkali of developer strength, such as methyl methacrylate polymer, may be applied through an adhesive, e.g. any of the above-mentioned colloids, the layer being stripped off after the development. A fluorescent layer may be carried by the protective layer and be stripped off therewith. A wetting agent is added to the composition of the protective layers to facilitate their removal. The edges of the pack are sealed with opaque paper or fabric or by coating with a composition similar to the protective layer. Nitro-substituted cyanines are carbocyanines, e.g. 2,21-diethyl-5,51-dinitrothiocarbocyanine-p-toluene sulphonate may be added to the emulsion to reduce its sensitivity to visible light without impairing the sensitivity to X-rays and gamma rays. Carbon black is the preferred material for rendering the protective layer opaque, although a red or orange dye may be used. A pattern or device is printed on the surface of the opaque coating to facilitate centring of the film and to indicate the side to face the source of X-rays. Specifications 114,933, [Class 98 (i)], 540,252, 543,993, [Group IV], 573,917 and 575,512 also are referred to.
Patent GB-181031-A (GB)
Title: Improvements in or relating to suspension of chassis of vehicles
IPC: B60G7/00
Filed: 1922-06-02
Abstract: 181,031. M³ller, G. W. June 3, 1921, [Convention date]. Axle distance members. -Relates to suspension devices for motor vehicles in which the axle is connected to the chassis in such a manner as to prevent relative transverse movement between the axle and chassis but to permit each wheel freely and substantially independently to follow road irregularities without subjecting the connections to torsional stresses. A swivelling device is provided in connection with each wheel to enable it to swivel about a shaft arranged in the longitudinal direction of the vehicle and forming part of a frame positively connecting the wheel axle to the chassis. As shown, the end of the front axle 5 near the wheel 2 carries a rotatable bearing 8, Fig. 3, to which is pivoted, by a vertical bolt 9, a fork 10 having a shaft 11 rotatably mounted in a socket 14 of a rod 15 connected by a universal joint 16, 17, Fig. 2, to a transverse shaft 18 mounted on the chassis 7. The end of the axle 5 near the wheel 1 is formed with a rigid eye 26, Fig. 5, which is connected by a bolt 9, fork 10, and shaft 11 to a socket 14, as described with reference to Fig. 3, the socket 14 being carried by a two-armed stay 19, 20 hinged to the shaft 18. A similar arrangement is used in connection with the rear axle but the positions of the rod 15 and forked stay 19, 20 are reversed.
Patent GB-457475-A (GB)
Title: Improvements in and relating to apparatus for tempering glass
IPC: C03B27/04
Filed: 1935-05-29
Abstract: 457,475. Tempering glass. PILKING- TON BROS., Ltd., 703, Tower Building, Water Street, Liverpool, and FORBES, L. J.-B., The Crossways, View Road, Rainhill, St. Helens, both in Lancashire. May 29, 1935, No. 15605. [Class 56] [See also Group XXIX] Relates to apparatus for tempering glass sheets or other articles in which the hot glass is cooled by means of jets of air or other fluid from nozzles in pipes or in the walls of casings. According to the invention, some or all of the nozzles 4 are controlled by needle valves 11 which can be adjusted independently of one another to regulate the flow of air. Means may be provided whereby a nozzle can be closed and then opened again to the same position of adjustment. For this purpose, the needle 11 has a stem 12 of smaller diameter which slides through a bush 13 and is secured to a nut 15 that screws on to the bush. This bush also screws into another bush 5, secured to the air pipe 1, and it can be rotated by a nut 18. In the position shown, the inner end of the part 11 of the needle abuts against the inner end of the bush 13, and by turning the nut 18, the effective opening of the nozzle 4 can be adjusted. The nut 15 enables the needle to be rotated to close the nozzle, and to be opened again to the position determined by the inner end of the bush 13.
Patent GB-1101763-A (GB)
Title: Improvements in or relating to the polymerization of ethylene
IPC: C08F2/00
Filed: 1965-04-13
Abstract: ]  <PICT:1101763/C3/1) Ethylene is polymerized in an apparatus comprising a pressure reaction chamber having first and second openings for respectively passing ethylene into and reaction products out of said chamber, a tubular member disposed within the chamber and having two open ends, one open end being coincident with one of the chamber openings and the other open end being spaced from the other chamber opening, the said other open end of the said tubular member being wholly within the chamber and facing in a direction away from the said other chamber opening, and means for agitating the contents of the said chamber.  In one embodiment carried out in the apparatus of Fig. 1, compressed ethylene is introduced into autoclave 1 through opening 4 and reacted therein, the catalyst being added with the ethylene or through a separate inlet (not shown) near opening 4. Ethylene is also fed, with or without catalyst, through port 7, to cool stirrer motor 3 and thence passes through port 10 to autoclave 1. The reaction mixture enters coiled tube 8 through opening 6 and is removed via opening 5. In a second embodiment, ethylene and a catalyst are fed into tube 8 via opening 5 and preheated by heat exchange with reaction product present in autoclave 1, into which the preheated ethylene passes via opening 6.  The product is removed through opening 4. Tube 8 may also by in the form of straight tube sections connected by U-tubes and arranged parallel to one another. The catalyst used in the examples is di-tertiary butyl-peroxide. Other peroxides or oxygen may also be used.
Patent GB-1387633-A (GB)
Title: Boiling burners for hotplates of domestic gas cookers
IPC: F23D14/06
Filed: 1971-05-19
Abstract: 1387633 A boiling burner CANNON INDUSTRIES Ltd 18 May 1972 [19 May 1971] 15763/71 Headings F4T and F4F A boiling burner for a hot plate of a domestic gas cooker employing spark ignition means comprises an earthed burner body 23, an electrode 32 insulated from the body by a burner skirt 8 seated on the burner body and in electrical continuity therewith, a burner cap (Fig. 1, not shown), seated on the skirt and having flame parts therein, the electrode extending into a pocket 30 defined by the skirt and connected to the interior 24 of the body 23 by a passageway 22 through which gas may flow into the pocket and the skirt 8 having a portion 21 spaced above the electrode to shield it and to provide a spark-gap for ignition of the gas in the pocket. The skirt has external and internal annular flanges 13, 14 which are bridged by vertical webs 20 to form the walls of the pocket 30. The passageway is formed as a slot in the lower surface 18 of the skirt which rests upon a spigot portion 25 of the body 23 protruding through the hot plate 26. The cap, skirt, and body merely rest in mutual contact and are located against relative turning by keys (Fig. 1, not shown). The body is inserted into the hot plate from below and retained by screws 29 and the electrode has a collared washer 33 which rests in a hole 31 in the hot plate. A four-burner-plate is described in which all the electrodes are connected to a common high-tension electrical source.
Patent GB-529978-A (GB)
Title: Improvements in and relating to electric lampholders and like electrical connections
IPC: H01R33/22
Filed: 1939-05-30
Abstract: 529,978. Lamp-holders. WARD & GOLDSTONE, Ltd., and GOLDSTONE, S. May 30, 1939, No. 15804. [Class 38 (i)] A holder for miniature screw lamps is moulded from insulating material in two parts, a socket a to receive the lamp and a cap c to cover the outer ends of the contacts d, e that are inserted in holes in the base b of the socket a. The centre contact may be a strip d, Fig. 1, running across the socket with its ends formed into a socket d<1> which is deformed to grip a wire, and a tonge d that is deformed to secure the contact in place. The other contact strip e has a part e<1> bent to fit the screw threaded socket a and a tongue at the other end that is deformed to secure the contact. A projection e<3> at one side is rolled to receive a wire. In a modification, the centre contact is a hollow rivet g, Fig. 4, and the other contact has one end h<2> rolled to receive the wire, the other end fitting into the socket a.
Patent GB-1310715-A (GB)
Title: Encapsulation process
IPC: B01J13/08
Filed: 1970-04-03
Abstract: 1310715 Encapsulation process BAYER AG 3 April 1970 [5 April 1969] 15828/70 Heading B8C [Also in Division A5] Solids and liquids are coated or encapsulated by dispersing them in an aqueous solution of a polymer which contains carboxyl or carboxylate groups and dispersing the solution or dispersion thus formed in an aqueous solution of an aluminium salt whereby the polymer is caused to harden, giving generally spherical particles of hardened polymer in which are embedded the solid or liquid particles. The encapsulated material may be a solid, a liquid or a solution of a solid in a water-immiscible liquid. Specific examples relate to the encapsulation of polybutene oil, aspirin and prontosil S. The polymer may be carboxymethyl cellulose, an alginate or pectin or a synthetic polymer such as copolymers of maleic anhydride with ethylene, isobutylene, styrene or vinyl ethers which have been at least partly converted to the carboxyl or carboxylate form, homopolymers of acrylic and methacrylic acids and copolymers thereof.
Patent GB-1085164-A (GB)
Title: Automatically controlling the size of holes etched in continuous metal webs
IPC: H01J9/14
Filed: 1966-04-12
Abstract: 1,085,164. Automatic control of hole size. BUCKBEE-MEARS CO. April 12, 1966 [Dec. 28, 1965], No. 15831/66. Heading G3R. In a system for etching a multitude of holes in a continuously moving metallic web, the speed of the web is automatically adjusted in accordance with hole size to maintain the latter between predetermined limits. Metallic web, e.g. for the production of aperture masks for colour TV. picture tubes, is continuously fed through an etching station in which oscillating sprays of etching fluid produce a multitude of miniature holes determined by a coated photographic process. After passing through a solvent chamber, scrubber, and drier, the size of the holes is continuously inspected by passing light through them on to photo-cells the output of which operates a follow-up type recorder. The recorder stylus also actuates a digitizer, outputs of which are selected by switches set to correspond to the maximum and minimum limits of allowable size of hole. If these limits are exceeded, one or other of two relays is actuated to operate an A.C. step by step motor in the appropriate direction to correct hole size by adjusting a potentiometer which controls the speed of an electric motor driving rolls which pull the web through the machine. Further relays are provided to ensure that the stepping motor, when operated, runs for a predetermined period, and that its next operation is delayed for a period sufficient to allow holes of the new size to reach the light detector.
Patent GB-515257-A (GB)
Title: Improvements in wheel bearings for tubs, hutches, and the like
IPC: B60B37/10
Filed: 1938-05-27
Abstract: 515,257. Bearings. PLATT BROS. & CO., Ltd., and DAWSON, H. May 27, 1938, No. 15833. [Class 12 (i)] A wheel for tubs, hutches and the like, has a bush 11a in the hub, and a thrust bearing pad 21a in the hub cap 19, both bush 11a and pad 21a being impregnated with antifriction material. The bush and pad may be of fibrous material impregnated with graphite or as shown, they may be of metal and have anti-friction material in grooves in the bearing faces.
Patent GB-1186911-A (GB)
Title: Novel Phosphorus-Containing 2-Imino-1,3-Dithioles
Inventor: ADDOR ROGER WILLIAMS
IPC: A01N57/32
Filed: 1967-04-06
Abstract: 1,186,911. Pesticides containing phosphinyl imides. AMERICAN CYANAMID CO. 6 April, 1967 [21 April, 1966], No. 15835/67. Heading A5E. [Also in Division C2] A pesticidal composition comprises a major amount by weight of an inert carrier and a minor amount by weight of a phosphinyl imide of the general formula: wherein X is O or S, R and R 1  are the same or different and each is C 1 -C 4  alkyl, C 1 -C 4  alkylthio, C 1 -C 4  alkoxy, aryl, or the group R 4 R 5 N where R 4  and R 5  are the same or different and each is H or C 1 -C 4  alkyl, and R 2  and R 3  are the same or different and each is H, C 1 -C 4  alkyl or phenyl. The phosphinyl imide has insecticidal, acaricidal, nematocidal and herbicidal properties and the carrier may be an inert organic solvent or an inert solid. The active compound may also be used in the form of a suspension in a non-solvent and a dispersing or surface active agent or anionic or nonionic type may be added to the suspension.
Patent GB-215295-A (GB)
Title: Improvements in and relating to steam or gas turbines
IPC: F01D25/26
Filed: 1923-06-19
Abstract: 215,295. Erste Br³nner Maschinen- Fabriks-Ges. May 5, 1923, [Convention date]. Casings.-The casing of a steam or gas turbine is divided at right angles to the axis into a portion b, p of rolled or pressed material which surounds the high-pressure part of the rotor and is undivided axially, and a portion c of cast material which is divided axially. The diaphragm supporting cylinder t is connected only to the casing portion c and is also axially divided. The resultant pressure on the parts c, t acts, together with the parts b, p, to tighten the axial joints of the low pressure casing. For additional strength, a cylinder e, Fig. 3, fixed to the portion c is tightly surrounded by the portion b and is connected to the cylinder t by webs j. Shallow recesses g are formed on the periphery of the cylinder e. Modifications, such as annular ribs or longitudinal ribs of various forms, are described, replacing the cylinder e. Specification 209,021 is referred to.
Patent GB-740642-A (GB)
Title: Improvements in or relating to anamorphotic attachments for optical objectives
IPC: G02B13/08
Filed: 1953-06-10
Abstract: 740,642. Anamorphotic optical systems. COOK, G. H., and TAYLOR, TAYLOR & HOBSON, Ltd. June 1, 1954 [June 10, 1953], No. 15992/53. Class 97 (1). A corrected anamorphotic attachment for an optical objective, particularly for cinematography, comprises two doublets having all their surfaces cylindrical with parallel generatrices, the conditions in the plane transverse to such generatrices being such that the rear doublet (nearer the main objective) is convergent and the front doublet is divergent, the separation between the adjacent nodal points of the doublets being not greater than # and not less than (# -0.15f2), whilst the rear surface of the rear doublet is concave to the first with radius of curvature between # and 0.4# and the near surface of the front doublet is convex to the front with radius of curvature between 0.15f 1  and 0.6f 1 , where f 1  and f 2  are the positive values of the equivalent focal lengths respectively of the front and rear doublets and # is the difference between f 1  and f 2 . Numerical data are given for five examples of the attachment shown, in one of which the cemented surface in each doublet is plane. The attachment may be used either in photography or projection. To focus the system for finite distances the separation between the two doublets may be varied or a suitable collimating lens be placed in front of the attachment. The collimating lens may be of variable focal length to suit different object distances, the anamorphotic attachment being focused for infinity.